Kardashian made the comments on an Instagram photo (above right) she posted Aug. 1 with the caption, “Ughhh, I am 20 lbs lighter here! This was just five years ago! Ok, I’m going back on my grind. I gotta get back here!”

Despite her lament, the 5-foot-3 Kim boasted on a recent episode of “Keeping Up With the Kardashians” that she now weighs 125 pounds — five pounds less than her pre-pregnancy weight.

The road back to her slammin’ pre-baby body has been hard but worth the effort. Kardashian lost 56 pounds just six months after giving birth to daughter North (in June 2013) by following a low-carb, high-fat ketogenic-style Atkins diet that limited her daily carb intake to less than 60 grams.

Kim also worked out almost every day, combining strength-training, lots of squats and cardio exercise on the treadmill and elliptical trainer.

“Low-carb, high fat diets curb hunger better than low-fat diets because fat keeps you feeling full,” explained Heimowitz, author of The New Atkins Made Easy.

Kardashian isn’t the only celebrity who has slimmed down on a LCHF ketogenic-style diet. Sharon Osbourne has maintained her 30-pound weight loss for more than two years by following a low-carb Atkins diet that limited her carb intake to 25 grams.

While Kardashian’s star status has raised the popularity of the Atkins and ketogenic diets for weight loss, research indicates LCHF diets have various health applications, including reversing type 2 diabetes, managing epilepsy, and treating cancer.

“It was nothing short of an epiphany when I changed to a ketogenic diet 20 years ago,” Dr. Volek, author of the “Art and Science of Low-Carbohydrate Living,” told me. “I felt better, more satiated, and had more consistent energy.”

‘Ketogenic Diet Beat Chemo For Most Cancers’

Cancer researchers also say the LCHF ketogenic diet can prevent and treat cancer. Dr. Dominic D’Agostino of the University of South Florida told me the ketogenic diet starves cancer because cancer cells thrive on sugar.

While many people dismiss ketogenic diet therapy for cancer because most of the studies so far have been done on mice, renowned cancer researcher, Dr. Thomas Seyfried, said the ketogenic diet actually works better on humans than it does on mice.

Seyfried, a pioneer in the nutritional treatment of cancer, said his decades of research show cancer is a metabolic disease that can be managed with diet therapy.

Seyfried’s decades of research suggest the ketogenic diet beats chemotherapy for most cancers. He hopes the medical community will embrace metabolic diet therapy as a viable alternative to toxic, expensive chemo.

“The standard of care has been an abysmal failure for brain cancer,” Seyfried, author of Cancer as a Metabolic Disease, told me. “The ketogenic diet can replace the standard of care for brain and most other cancers. There’s no doubt in my mind.”